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| Registros recuperados: 145 | |
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| TOMAS, W. M.; CAMILO, A. R.; RIBAS, C.; LEUCHTENBERGER, C; BORGES, P. A. L; MOURAO, G.; PELLEGRIN, L. A.. |
| The giant otter (Pteronura brasiliensis) is listed as vulnerable in Brazil, is included in Appendix I of CITES and is classified as endangered by the IUCN. In Brazil, few viable populations persist outside the Amazon basin and the Pantanal wetland. Furthermore, there is limited information on the distribution and abundance of the existing populations. The aim of this study was to estimate the abundance of giant otters in the Pantanal wetland and to discuss the conservation status of this population. From July 2000 to November 2011 we conducted surveys throughout the Pantanal to detect the occurrence of giant otters by the observations of active dens and latrines and the direct visualization of the otters. We also monitored giant otter population in five... |
| Tipo: Separatas |
Palavras-chave: Ariranha; Conservação de espécie; Espécie nativa; Habitat; Pteronura brasiliensis; Indigenous species; Wetland conservation. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1033599 |
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| Cândido,Jairo Luís; Volkmer-Ribeiro,Cecília; Fürstenau-Oliveira,Karina. |
| Dosilia plumosa (Carter, 1849), type species of the genus, and D. brouni (Kirkpatrick, 1906), with distribution respectively in the Oriental and Ethiopic regions, are revised based on a SEM analysis of spicules, gemmules and skeletal structure. The lectotype here designated for D. plumosa is illustrated as well as the holotype by monotypy determined for D. brouni. Dosilia palmeri (Potts, 1885) and D. radiospiculata (Mills, 1888) distributed in the Nearctic and Neotropical regions and D. pydanieli Volkmer-Ribeiro, 1992, found in the Neotropical region, are revised based on a SEM analysis of spicules, gemules and skeletal structure. The holotype by monotypy is determined for D. radiospiculata. Heteromeyenia plumosa Weltner,1895 is synonymyzed with D.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Continental sponges; Taxonomy; Distribution; Habitat. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000400017 |
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| CAMPOS, Z.. |
| Por que os animais se movem é uma intrigante questão em ecologia. Pyke (1984) explicou que os movimentos são relacionados com forrageamento, evitar predação, encontrar acasalamento e participar de interação agonísticas. Os crocodilianos podem mover por uma variedade de razões, e decidem quando fazê-lo, provavelmente, por influência de fatores ambientais e de disponibilidade de habitat e alimento (lang 1987). O jacaré-do-Pantanal, Caiman crocodilus yacare, vive em altas densidades em habitats sazonalmente inundados no Pantanal (Coutinho e Campos, 1996, Mourão et al., 2000) e o estoque de alimento na estação da seca pode determinar movimento. Santos et al. (1996) registraram adultos e girinos de Pseudis paradoxa na dieta dos jacarés. Este estudo em longo... |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Nhumirim; Yacare; Food.; Alimento; Habitat; Jacaré.; Pantanal.. |
| Ano: 2004 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810544 |
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| Crivelaro,R.M.; Thiesen,R.; Aldrovani,M.; Lima,T.B.; Ortêncio,K.P.; Padua,I.R.M.; Duarte,J.M.B.; Laus,J.L.. |
| ABSTRACT The aim of this study was to establish normal baseline ERG values of 23 anesthetized deer belonging to 8 neotropical species (Mazama americana, Mazama nemorivaga, Mazama gouazoubira, Mazama nana, Mazama bororo, Ozotocerus bezoarticus, Odocoileus virginianus and Blastocerus dichotomus). Only right eyes were studied. Chemical restraint was performed using xylazine associated with ketamine, IM, for M. americana, M. gouazoubira, M. nemorivaga, M. nana, M. bororo, O. bezoarticus and O. virginianus. A combination of tiletamine/zolazepam diluted in xylazine 2% was used for B. dichotomus individuals. After 20min of dark adaptation, electroretinograms were obtained using a handheld electroretinography (ERG) machine using the QuickRetCheck Protocol at three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cervidae; Habitat; Retina; Wild animal; ERG. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000501505 |
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| Cortes, R.; Varandas, S.; Hughes, S.; Magalhães, M.; Teixeira, Amílcar. |
| The distribution of aquatic communities is dependent on processes that act at multiplescales. This study comprised 270 samples distributed over 2 years and used a nested sampling design to estimate the variance associated with three spatial scales: basin, site and microhabitat. Habitat assessment was made using River Habitat Survey. The derived Habitat Quality Indices and the benthic composition were crossed with landscape metrics and types of soil use, obtained from GIS data, using multiple non-parametric regressions and distance-based redundancy analysis. Invertebrate variation was mainly linked with intermediate scale (site) and landscape metrics were the main drivers determining local characteristics. The aquatic community exhibited a stronger... |
| Tipo: ConferenceObject |
Palavras-chave: Landscape metrics; Soil use; Macroinvertebrates; Habitat; Spatial scale. |
| Ano: 2010 |
URL: http://hdl.handle.net/10198/5031 |
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| Cortes, R.; Varandas, S.; Hughes, S.; Magalhães, M.; Teixeira, Amílcar. |
| The distribution of aquatic communities is dependent on processes that act at multiplescales. This study comprised 270 samples distributed over 2 years and used a nested sampling design to estimate the variance associated with three spatial scales: basin, site and microhabitat. Habitat assessment was made using River Habitat Survey. The derived Habitat Quality Indices and the benthic composition were crossed with landscape metrics and types of soil use, obtained from GIS data, using multiple non-parametric regressions and distance-based redundancy analysis. Invertebrate variation was mainly linked with intermediate scale (site) and landscape metrics were the main drivers determining local characteristics. The aquatic community exhibited a stronger... |
| Tipo: ConferenceObject |
Palavras-chave: Landscape metrics; Soil use; Macroinvertebrates; Habitat; Spatial scale. |
| Ano: 2010 |
URL: http://hdl.handle.net/10198/4662 |
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| OLIVEIRA,Jocieli de; ALMEIDA,Sara M.; FLORÊNCIO,Fernando P.; PINHO,João B.; OLIVEIRA,Dalci M. M.; LIGEIRO,Raphael; RODRIGUES,Domingos J.. |
| ABSTRACT Changes in environmental characteristics can affect habitat use by birds, impacting the number of individuals, number of species, and changing species composition and functional structure of assemblages. Metrics that evaluate the functional structure of biological assemblages constitute a complementary tool to the traditional taxonomic approach, because they quantify the differences between species by means of functional traits. We assessed the effect of environmental characteristics on the taxonomic diversity (species richness, species composition and number of individuals) and functional structure (functional richness, functional evenness, Rao’s functional diversity, and community-weighted mean traits) of bird assemblages in northern Mato Grosso... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aves; Assemblage structure; Habitat; Functional richness. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000300232 |
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| Teixeira, Amílcar; Lima, M.; Machado, J.; Hinzmann, M.; Cortes, R.; Varandas, S.; Antunes, F.. |
| Permanecem pouco estudadas as condições ecológicas dos rios Rabaçal e Tuela que permitem a existência de populações viáveis de mexilhão-de-rio (Margaritifera margaritifera L.). Estudos preliminares realizados no Verão de 2009 permitiram caracterizar o habitat e microhabitat usado pela espécie assim como a qualidade da água e sedimentos. Relativamente ao habitat foi aplicada a metodologia RHS (River Habitat Survey) complementada com uma análise do microhabitat. Realizaram-se 30 transectos por cada troço de rio seleccionado e determinadas as variáveis da profundidade, substrato dominante e sub-dominante, velocidade da corrente, medida na coluna de água e no leito, e cobertura em cada área amostrada (0.25 cm2). A M. margaritifera apresentou uma distribuição... |
| Tipo: ConferenceObject |
Palavras-chave: Margaritifera margaritifera; Habitat; Qualidade da água; Sedimentos. |
| Ano: 2010 |
URL: http://hdl.handle.net/10198/4924 |
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| Teixeira, Amílcar; Lima, M.; Machado, J.; Hinzmann, M.; Cortes, R.; Varandas, S.; Antunes, F.. |
| Permanecem pouco estudadas as condições ecológicas dos rios Rabaçal e Tuela que permitem a existência de populações viáveis de mexilhão-de-rio (Margaritifera margaritifera L.). Estudos preliminares realizados no Verão de 2009 permitiram caracterizar o habitat e microhabitat usado pela espécie assim como a qualidade da água e sedimentos. Relativamente ao habitat foi aplicada a metodologia RHS (River Habitat Survey) complementada com uma análise do microhabitat. Realizaram-se 30 transectos por cada troço de rio seleccionado e determinadas as variáveis da profundidade, substrato dominante e sub-dominante, velocidade da corrente, medida na coluna de água e no leito, e cobertura em cada área amostrada (0.25 cm2). A M. margaritifera apresentou uma distribuição... |
| Tipo: ConferenceObject |
Palavras-chave: Margaritifera margaritifera; Habitat; Qualidade da água; Sedimentos. |
| Ano: 2010 |
URL: http://hdl.handle.net/10198/4675 |
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| Varandas, S.; Teixeira, Amílcar; Lopes-Lima, M.; Hinzmann, M.; Cortes, R.; Machado, J.. |
| O exíguo conhecimento das condições ecológicas presentes nos rios Tua e Sabor, que permitem a existência de populações viáveis das náiades Unio delphinus (anteriormente designado por Unio cf. pictorum), Anodonta anatina e Potomida littoralis, é condição básica para a monitorização destes ecossistemas. Neste sentido, no Verão de 2009 foram feitos estudos preliminares de caracterização do habitat e microhabitat usado pelas espécies de náiades bem como análises à qualidade da água e sedimentos. No que concerne ao habitat, foi aplicada a metodologia RHS (River Habitat Survey) complementada com uma análise do microhabitat baseada em transeptos por cada troço de rio seleccionado. Foram, por isso, determinadas as variáveis profundidade, substrato dominante e... |
| Tipo: ConferenceObject |
Palavras-chave: Potomida littoralis; Anodonta anatina; Unio delphinus; Habitat; Qualidade da água. |
| Ano: 2010 |
URL: http://hdl.handle.net/10198/4929 |
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| Schohn, Thomas; Bockel, Thomas; Carpentier, Liliane; Pelletier, Dominique. |
| - The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. The survey relies on remote unbaited underwater video observations, using the STAVIRO rotating technique. - The study pertains to the reefs of Astrolabe, Pétrie and Walpole Island, located within the Coral Sea Natural Park. The survey conducted in 2014 covers the entire area, and the sampling design was stratified according to reef type. 95 stations were validated. They were analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 565 fish species (cf. AMBIO/A/1). - 28 indicators were computed and mapped (maps available on a Sextant server).... |
| Tipo: Text |
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Parc naturel mer de Corail; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Ecosystème corallien; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Marine Protected Area: Coral Sea Natural Park; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00406/51738/52324.pdf |
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| Pelletier, Dominique; Bockel, Thomas; Roman, William; Carpentier, Liliane; Laugier, Thierry. |
| - The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. The surveys rely on remote unbaited underwater video observations, using the STAVIRO rotating technique. Chesterfield and Bellona remote reefs and atolls are located in the Coral Sea Marine Park, northwest of New Caledonia. -This 2013 survey is the first scientific survey covering the entire area, with a sampling design stratified according to reef type. 203 stations were validated within 10 days. They were analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 565 fish species (cf. AMBIO/A/1). - 34 indicators were computed and mapped (maps... |
| Tipo: Text |
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Parc de la Mer de Corail; Aire Marine Protégée; AMP; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Coral Sea Marine Park; Marine Protected Area; MPA; World Heritage; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00381/49247/49700.pdf |
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| Giraud-carrier, Charlotte; Pelletier, Dominique. |
| • Conducted within the AMBIO project, this work deals with coral reef fish communities and associated habitats, in the New Caledonian lagoons. It aims at assessing the status and trends of habitats and mobile macrofauna in the Voh-Kone-Pouembout lagoon, in the light of demographic and industrial developments and accounting for the existing customary reserve of Oundjo. • It relies on 280 stations collected in 2007 and 2013 using the remote unbaited underwater video STAVIRO rotating technique, which were analysed to characterize habitat, fish assemblages, turtles and sea snakes, from a list of 490 species (AMBIO/A/1). • 143 species (including one turtle species and one sea snake species), belonging to 23 families were observed. The most frequent and abundant... |
| Tipo: Text |
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Impact anthropique; Aire Marine Protégée; Réserve coutumière; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Biodiversity; Fish assemblage; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Anthropogenic impact; Marine Protected Area; MPA; Customary reserve; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00360/47109/47050.pdf |
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| Registros recuperados: 145 | |
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